Got the same impressions, this might be something and it has a few problems that probably is due to it being very new and growing pains.
No risk getting an account and see if it works before they start charging for the app

After a few days using this app, I am quite impressed. Yes, there are a few bugs...due to growing pains and it's still beta.

As has been mentioned it will eventually go to a subscription based app, but you can still get free life membership currently, so nothing to lose. Exactly how a subscription will work or affect the user base I am not sure, also can't see it working to well(being unpopular and putting of potential users).

If anyone would like a new follower(ME!) drop your username here and I will happily follow